Have you ever suspected that your city or town is trying too hard to catch traffic scofflaws in the pursuit of ticket revenue? A Florida woman received a ticket based on evidence from a red light camera, but believed the ticket was unfair because the yellow light was too short. The power of math proved that she was correct..

Her math tutor husband took a stopwatch to the intersection where she received the ticket, and set out to vindicate her. He discovered that yellow lights at that intersection are eight tenths of a second shorter than county guidelines require.

That doesn't excuse every ticket issued for red-light violations, but it's enough of a discrepancy to make county residents suspicious.